Author: Alexander Moradi

Details of variable construction as well as sources can be found in the Web Data-Appendix of the paper.

We used ArcGIS' and QGIS tools to construct overlays and distance measures. We did this for each shapefile and merged the output (.dbf) files in Stata to <GIS_explanatories.dta>. 

Input files
1) <Rivers_Ghana.shp> (shapefile of the rivers of Ghana used for transportation - canoe, steamship)
2) <GC1831.shp>, <GC1895.shp>, <GC1896.shp>,<GC1898.shp>, <GC1902.shp>, <GC1914.shp>, <GC1922.shp> (shapefiles of Ghana colonial borders, source: Bening 1999)
3) <Roads1930.shp> (class 1/2/3 road network 1930)
4) <gold_alluvial.shp> (shapefile with polygons of alluvial gold fields Ghana - source: Dickson 1969)
5) <kolanut.shp> (shapefile of Kola Producing areas 1932 - source: Dickson 1969)
6) <Presbyterian1847_UTM30N.shp> Basel (Presbyterian sphere of influence)

Output files
1) <GIS_explanatories.dta>

Sources:
See Web Data-Appendix of the paper.
